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SUMMARY:Luiz Gustavo Cordeiro : "Topological dynamics\, inverse semigroups
and orbit equivalence"
DTSTART;VALUE=DATE-TIME:20190115T091500Z
DTEND;VALUE=DATE-TIME:20190115T104500Z
DTSTAMP;VALUE=DATE-TIME:20200813T173133Z
UID:indico-event-4291@indico.math.cnrs.fr
DESCRIPTION:Abstract: In this talk I will present actions of inverse sem
igroups\, which have been playing an increasingly important role in the s
tudy of topological dynamical systems and their associated algebras. These
are generalizations of group actions which allow the study of dynamical s
ystems induced by sets of partial transformations\, and thus cover a large
r class of systems than those given by group actions. As a motivation\, we
will start by looking at continuous orbit equivalences of graphs\, which
relates the asymptotic behaviour of their walks\, and our main goal will b
e to relate that to the continuous orbit equivalence of semigroup actions\
, isomorphisms of groupoids\, and isomorphisms of algebras.\n\nhttps://ind
ico.math.cnrs.fr/event/4291/
LOCATION:UMPA
URL:https://indico.math.cnrs.fr/event/4291/
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